Web Server behind LOOL

Hi all,

This is a basic question but I can't understand yet. What is the web server running behind the LibreOffice Online?
The websocket is the protocol used to change messages, right? What's other protocols are used in this application?

Web Server behind LOOL

Hi all,

This is a basic question but I can't understand yet. What is the web server running behind the LibreOffice Online?
The websocket is the protocol used to change messages, right? What's other protocols are used in this application?